Re: Effects of mixing lava rock with coal

On Apr 23, 9:13 pm, Mark <drewm...@xxxxxxxxx> wrote:
I've searched all over the internet, and haven't been able to find an
answer to this question, so I'm hoping that someone here may be able
to.  My question is this:

How would mixing lava rocks with coal affect such things as the
combustion rate, efficiency, etc. (as compared to just coal)?

I can make a few guesses, but I'm hoping someone here will be able to
answer with more confidence than my guesses.

Thanks!
Mark

Why don't you try it and find out. My guess is that it would help by
enabling better air flow around the coal lumps, might hurt by diluting
the heat. Try different mix ratios, lump sizes, and hearth
configurations, with or without forced air. Also, both coal varieties
and lava stone vary widely, so it may be hard to generalize. Let us
know what you find out.-Jitney
.